Why Your Smoothie Needs Frozen Coconut Water

With fewer calories than a sports drink, more potassium than bananas, and zero artificial anything, coconut water is happy hydration the way nature intended. Our new favorite way to use it: Pour into ice cube trays, freeze, and boom. You've got DIY recovery cubes that can be tossed into any smoothie for an icy electrolyte hit with tropical flavor.

"After a sweaty half-hour workout in the heat, you need to replace, on average, 600 to 750 mg of potassium and about 250 mg of sodium—roughly the amount in ten 1-ounce cubes," says Christine Gerbstadt, a registered dietitian. Opt for an unsweetened variety and, at only 5 calories a cube, it's a smart smoothie add-on that won't undo your hard work. Cheers!

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